diff mbox series

i2ctransfer: Drop redundant variable arg_idx

Message ID 20220524114457.1c78c552@endymion.delvare
State New
Headers show
Series i2ctransfer: Drop redundant variable arg_idx | expand

Commit Message

Jean Delvare May 24, 2022, 9:44 a.m. UTC 
arg_idx has the same meaning as getopt's optind global variable, so
drop the former and use the latter. Once getopt() is done parsing the
options, there should be no problem using it for ourselves.

Sigend-off-by: Jean Delvare <jdelvare@suse.de>
---
I can't easily test this, Wolfram can you please do it?

 tools/i2ctransfer.c |   15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)
diff mbox series

Patch

--- i2c-tools.orig/tools/i2ctransfer.c	2022-05-24 11:34:48.901029181 +0200
+++ i2c-tools/tools/i2ctransfer.c	2022-05-24 11:38:35.637104513 +0200
@@ -131,7 +131,7 @@  static int confirm(const char *filename,
 int main(int argc, char *argv[])
 {
 	char filename[20];
-	int i2cbus, address = -1, file, opt, arg_idx, nmsgs = 0, nmsgs_sent, i;
+	int i2cbus, address = -1, file, opt, nmsgs = 0, nmsgs_sent, i;
 	int force = 0, yes = 0, version = 0, verbose = 0, all_addrs = 0;
 	struct i2c_msg msgs[I2C_RDRW_IOCTL_MAX_MSGS];
 	enum parse_state state = PARSE_GET_DESC;
@@ -160,13 +160,12 @@  int main(int argc, char *argv[])
 		exit(0);
 	}
 
-	arg_idx = optind;
-	if (arg_idx == argc) {
+	if (optind == argc) {
 		help();
 		exit(1);
 	}
 
-	i2cbus = lookup_i2c_bus(argv[arg_idx++]);
+	i2cbus = lookup_i2c_bus(argv[optind++]);
 	if (i2cbus < 0)
 		exit(1);
 
@@ -174,8 +173,8 @@  int main(int argc, char *argv[])
 	if (file < 0 || check_funcs(file))
 		exit(1);
 
-	while (arg_idx < argc) {
-		char *arg_ptr = argv[arg_idx];
+	while (optind < argc) {
+		char *arg_ptr = argv[optind];
 		unsigned long len, raw_data;
 		__u16 flags;
 		__u8 data, *buf;
@@ -310,7 +309,7 @@  int main(int argc, char *argv[])
 			goto err_out;
 		}
 
-		arg_idx++;
+		optind++;
 	}
 
 	if (state != PARSE_GET_DESC || nmsgs == 0) {
@@ -342,7 +341,7 @@  int main(int argc, char *argv[])
 	exit(0);
 
  err_out_with_arg:
-	fprintf(stderr, "Error: faulty argument is '%s'\n", argv[arg_idx]);
+	fprintf(stderr, "Error: faulty argument is '%s'\n", argv[optind]);
  err_out:
 	close(file);